<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>HTML5新特性</title>
    <style>
        header {
            height: 100px;
            background-color: pink;
        }
    </style>
</head>

<body>
    <!-- 语义化标签 -->
    <header>头部标签</header>
    <nav>导航栏</nav>
    <aside>侧边栏</aside>
    <section>某个区域</section>
    <footer></footer>
</body>

</html>